In recent years, our environment has been dealt with on a very serious level. This due to the uncontrollable contamination has been done by the irresponsible people who mostly involve in manufacturing. On the other hand, person who not involve with such a thing still not excused from this problem and the person is us. Moreover, we are unconscious that almost 60% from the caused of the pollution is contributed by us.

Air pollution is a chemical or particulate matter or biological agent that modifies the natural characteristics of the atmosphere. So, our goals to conduct a research on air pollution. This include the investigation on its sources, future effects to human being either short-term or long-term effect and included with some efforts to cope with this problem.

We had accomplished this research by searching the information and done some revision. We had surfing the internet, done some revision on the book about air pollution and made an informal interview among our friends, asking them their opinion about air pollution.

2. INTRODUCTIONHuman is probably first experienced harm from air pollution when they built fires in poorly ventilated caves. Since then we have gone on to pollute more of the earth's surface. Until recently, environmental pollution problems have been local and minor because of the Earth's own ability to absorb and purify minor quantities of pollutants. Factors contributing toward the growing air pollution problem are the industrialization of society, the introduction of motorized vehicles and the explosion of the population. At this time, it is urgent that we find methods to clean up the air.

The primary air pollutants found in most urban areas are carbon monoxide, nitrogen oxides, sulfur oxides, hydrocarbons, and particulate matter. These pollutants are isolated throughout the world's atmosphere in concentrations high enough to gradually cause serious health problems. Serious health problems can occur quickly when air pollutants are concentrated such as when gigantic injections of sulfur dioxide and suspended particulate matter are emitted by a large volcanic eruption.

Worldwide air pollution is responsible for large numbers of deaths and cases of respiratory disease. While major stationary sources are often identified with air pollution, the greatest source of emissions is actually mobile sources, mainly automobiles. Gases such as carbon dioxide, which contribute to global warming, have recently gained recognition as pollutants by some scientists. Other recognizes the gas as being essential to life and therefore not capable of being classed as a pollutant.

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3. PROBLEM DEFINITION The combustion of gasoline and other hydrocarbon fuels in automobiles, trucks, and jet airplanes produces several primary pollutants: nitrogen oxides, gaseous hydrocarbons, and carbon monoxide, as well as large quantities of particulates, chiefly lead. In the presence of sunlight, nitrogen oxides combine with hydrocarbons to form a secondary class of pollutants, the photochemical oxidants, among them ozone and the eye-stinging peroxyacetylnitrate (PAN). Nitrogen oxides also react with oxygen in the air to form nitrogen dioxide, a foul-smelling brown gas. In urban areas like Los Angeles where transportation is the main cause of air pollution, nitrogen dioxide tints the air, blending with other contaminants and the atmospheric water vapor to produce brown smog. Although the use of catalytic converters has reduced...

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To understand pollution of air, some knowledge of the atmosphere is required. Atmosphere is a layer consisting of a few gases surrounding the planet earth and is vital for the survival of life on earth. The atmosphere protects earth from abrupt temperature fluctuations from the powerful ultra violet radiation coming from the sun. The atmosphere is made up of nitrogen 78%,oxygen 21%,argon 0.9%,carbon dioxideo0.03% and small amount of trace gases ,helium ,neon, krypton, xenon, hydrogen and ozone. In addition, there is some amount of water vapour. The atmosphere exists in layer called troposphere,stratosphere,ionoshhere and exosphere in that order from the surface of earth. The atmosphere is not static and is moving constantly with respect to earth surface,both horizontally and vertically.
CAUSES OF AIRPOLLUTION
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Schematic drawing, causes and effects of airpollution: (1) greenhouse effect, (2) particulate contamination, (3) increased UV radiation, (4) acid rain, (5) increased ozone concentration, (6) increased levels of nitrogen oxides. Source Wikipedia.com
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Air and Water Pollution Paper
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...AIR QUALITY CONTROL
Table of Contents
TOPIC | PAGE NUMBER(S) |
DEFINITION | |
COMMON AIR POLLUTANTS | |
MAN-MADE SOURCES | |
NATURAL SOURCES | |
TECHNICAL BRIEF OF THE GAME | |
CONCLUSION | |
REFERENCES | |
DEFINITION
This is also known as atmospheric pollution. It can be classified as ambient (outdoor) air and indoor air. Many materials that are considered contaminants and pollutants are found naturally existing in the atmosphere. A definition for airpollution must cover the various parameters that exist and could pose a threat on human health and the environment. Airpollution according to the World Health Organization can be defined as the presence of materials in the air which are harmful to the living beings when they cross their threshold concentration levels. Essentially this means that these contaminants can exist in the environment as long as they pose no threat to any organism that depends on the interaction of the atmospheric environment.
COMMON AIR POLLUTANTS
Some of the most common air pollutants can be classified as ground level Ozone, Particulate matter, Carbon monoxide, Nitrogen oxides, Sulphur oxides and Lead.
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...Introduction of Environmental pollutionPollution - Environmental pollution is any discharge of material or energy into water, land, or air that causes or may cause acute (short-term) or chronic (long-term) detriment to the Earth's ecological balance or that lowers the quality of life. Pollutants may cause primary damage, with direct identifiable impact on the environment, or secondary damage in the form of minor perturbations in the delicate balance of the biological food web that are detectable only over long time periods.
Until relatively recently in humanity's history, where pollution has existed, it has been primarily a local problem. The industrialization of society, the introduction of motorized vehicles, and the explosion of the human population, however, have caused an exponential growth in the production of goods and services. Coupled with this growth has been a tremendous increase in waste by-products. The indiscriminate discharge of untreated industrial and domestic wastes into waterways, the spewing of thousands of tons of particulates and airborne gases into the atmosphere, the "throwaway" attitude toward solid wastes, and the use of newly developed chemicals without considering potential consequences have resulted in major environmental disasters, including the formation of smog in the Los Angeles area since the late 1940s and the pollution of large areas of the...